package com.xuqm.sdk.update

import android.content.Context
import android.content.Intent
import android.net.Uri
import androidx.core.content.FileProvider
import com.xuqm.sdk.XuqmSDK
import com.xuqm.sdk.network.ApiClient
import com.xuqm.sdk.update.api.UpdateApi
import com.xuqm.sdk.update.model.RnUpdateInfo
import com.xuqm.sdk.update.model.UpdateInfo
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.withContext
import java.io.File
import java.net.URL

object UpdateSDK {

    private val api: UpdateApi by lazy { ApiClient.create() }

    suspend fun checkAppUpdate(context: Context): UpdateInfo? = withContext(Dispatchers.IO) {
        XuqmSDK.requireInit()
        val versionCode = context.packageManager
            .getPackageInfo(context.packageName, 0).longVersionCode.toInt()
        runCatching {
            api.checkUpdate(XuqmSDK.appId, "ANDROID", versionCode).data
        }.getOrNull()
    }

    suspend fun downloadAndInstall(
        context: Context,
        downloadUrl: String,
        onProgress: (Int) -> Unit = {},
    ) = withContext(Dispatchers.IO) {
        val apkFile = File(context.getExternalFilesDir(null), "update.apk")
        val url = URL(downloadUrl)
        val connection = url.openConnection()
        connection.connect()
        val totalSize = connection.contentLengthLong

        connection.getInputStream().use { input ->
            apkFile.outputStream().use { output ->
                val buffer = ByteArray(8192)
                var downloaded = 0L
                var read: Int
                while (input.read(buffer).also { read = it } != -1) {
                    output.write(buffer, 0, read)
                    downloaded += read
                    if (totalSize > 0) onProgress((downloaded * 100 / totalSize).toInt())
                }
            }
        }
        withContext(Dispatchers.Main) { installApk(context, apkFile) }
    }

    private fun installApk(context: Context, apkFile: File) {
        val intent = Intent(Intent.ACTION_VIEW).apply {
            flags = Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_GRANT_READ_URI_PERMISSION
            val uri = FileProvider.getUriForFile(context, "${context.packageName}.fileprovider", apkFile)
            setDataAndType(uri, "application/vnd.android.package-archive")
        }
        context.startActivity(intent)
    }

    suspend fun checkRnUpdate(moduleId: String, currentVersion: String): RnUpdateInfo? =
        withContext(Dispatchers.IO) {
            XuqmSDK.requireInit()
            runCatching {
                api.checkRnUpdate(XuqmSDK.appId, moduleId, "ANDROID", currentVersion).data
            }.getOrNull()
        }
}